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Reliable Octopus V1.1 Control Board by BIGTREETECH for Klipper, Marlin, Voron, Rat Rig, CoreXY, and advanced DIY 3D printer electronics builds.
$76.69
26 in stock
The Octopus V1.1 Control Board by BIGTREETECH is a powerful 3D printer motherboard designed for Klipper, Marlin, Voron, Rat Rig, CoreXY, large-format printers, and advanced DIY printer electronics. It is built for builders who need more stepper driver capacity, more fan control, more heater outputs, and stronger expansion options than smaller printer control boards can provide.
The BIGTREETECH Octopus V1.1 uses a 32-bit ARM Cortex-M4 STM32F446ZET6 processor running at 180MHz. It supports Klipper and Marlin firmware, up to 8 stepper drivers with 9 stepper outputs total, up to 4 hotend heaters, CAN bus expansion, BLTouch and other leveling sensors, multiple fan outputs, and flexible wiring options for complex 3D printer builds.
The Octopus V1.1 supports up to 8 stepper drivers with 9 stepper driver outputs total. This makes it useful for printer builds that require multiple Z motors, independent motor control, dual gantries, CoreXY motion, tool changers, multi-extruder layouts, or advanced kinematic setups. Stepper drivers are typically sold separately unless a kit specifically includes them.
The Octopus V1.1 Control Board measures 160mm x 100mm with 150mm x 90mm mounting hole dimensions. Before installation, confirm your electronics enclosure, printed mount, standoffs, wiring clearance, USB access, fan clearance, and cable routing. Proper mounting helps protect the board from shorts, vibration, and wiring strain.
This board supports both Klipper and Marlin, making it flexible for different printer-control workflows. Klipper users can pair the board with a Raspberry Pi-style SBC, BIGTREETECH CB1/Pi4B-style setup, or other compatible host computer depending on the build. Marlin users can use the board as a high-capability standalone controller for supported printer configurations.
The Octopus V1.1 uses the STM32F446ZET6 32-bit ARM Cortex-M4 processor with a 180MHz core frequency. This gives the board strong processing capability for modern 3D printer motion control, expansion features, communication, and firmware operation.
The board supports up to 6 PWM fans and 2 always-on fans, with selectable voltage rails for fan outputs. BIGTREETECH documentation lists fan voltage selection from Vin, 12V, or 5V depending on configuration. This is useful for builds that mix hotend fans, part cooling fans, electronics bay fans, toolhead cooling, and controller cooling with different voltage requirements.
The Octopus V1.1 supports up to 4 hotend heaters and includes expansion support for common 3D printer sensors and accessories. It can support BLTouch-style leveling sensors, filament runout, power loss detection, automatic shutdown after printing, temperature sensor inputs, and other printer control features depending on wiring and firmware configuration.
The board includes expansion support such as CAN bus, USB communication, U disk/USB function, SD card firmware workflows, IIC expansion, WiFi interface support, and other printer electronics features depending on configuration. This makes the Octopus V1.1 useful for modern toolhead wiring, expansion modules, display support, and advanced printer control layouts.
The Octopus V1.1 Control Board is commonly used in advanced 3D printer builds such as Voron-style machines, Rat Rig-style machines, CoreXY printers, large-format printers, custom enclosed printers, and DIY printer electronics projects. It is especially useful when a build needs more drivers, more outputs, and more wiring flexibility than a smaller controller board.
For related components, browse the 3D Printer Parts category or the Electronics category. This control board can be paired with stepper drivers, display screens, fans, probes, filament sensors, thermistors, hotends, heater cartridges, SSRs, power supplies, wiring, and other printer electronics from dnb3D.
For official board files, firmware information, pinouts, wiring references, and setup details, review the BIGTREETECH Octopus documentation before installation or flashing.
Every order is hand-inspected and precision-shipped from dnb3D in Marathon, Ontario. Whether you are building a Voron, Rat Rig, CoreXY printer, large-format machine, or custom Klipper/Marlin electronics setup, the Octopus V1.1 Control Board provides a powerful motherboard platform for advanced 3D printer control.
The Octopus V1.1 Control Board is a BIGTREETECH 32-bit 3D printer motherboard for Klipper, Marlin, Voron, Rat Rig, BLV Cube, CoreXY, and advanced DIY printer electronics builds.
| Product Type | 3D printer control board / motherboard |
|---|---|
| Brand / Manufacturer | BIGTREETECH / Big Tree Tech / BTT |
| Model | Octopus V1.1 Control Board |
| Board Dimensions | 160mm x 100mm |
| Mounting Hole Dimensions | 150mm x 90mm |
| Main Control Chip | ARM Cortex-M4 STM32F446ZET6 32-bit microcontroller |
| Core Frequency | 180MHz |
| Flash ROM | 512KB |
| Input Voltage | 24V |
| Firmware Support | Klipper and Marlin |
| Stepper Driver Support | Up to 8 stepper motor driver sockets; stepper drivers are sold separately |
| Raspberry Pi / SBC Interface | USB serial or direct UART |
| Fan Support | 6 controllable PWM fans plus 2 additional non-controlled fans |
| Fan Voltage Selection | 5V, 12V, or 24V selectable fan voltage |
| Hotend Support | Supports up to 4 hotends |
| ABL / Probe Support | Supports BLTouch and other automatic bed leveling sensors |
| TMC Driver Features | StallGuard sensorless homing support with compatible TMC drivers |
| Power Features | Auto shutdown and power loss recovery support |
| Common Printer Use | Voron, Rat Rig, BLV Cube, CoreXY printers, large-format printers, multi-motor builds, Klipper printers, Marlin printers, and advanced DIY printer electronics |
| Related Products | Stepper drivers, Raspberry Pi-style SBC, BIGTREETECH CB1/Pi4B setup, Manta M8P, fans, probes, thermistors, heater cartridges, SSRs, and printer wiring |
| Sold Separately | Stepper drivers, CB1/SBC, screen, wiring, fans, power supply, probes, and accessories are sold separately unless otherwise stated. |
| SKU | DB-0030-4928 |
| Installation Warning | Confirm board version, power input, fan voltage jumpers, stepper driver orientation, wiring polarity, firmware files, pinout, driver compatibility, enclosure clearance, mounting hole spacing, and cooling before powering the board. |
| Fulfillment | Hand-inspected and precision-shipped from dnb3D in Marathon, Ontario, Canada |
Before installing the Octopus V1.1 Control Board, confirm the exact board version, official pinout, firmware files, driver compatibility, power input requirements, and wiring documentation. Control board revisions can vary, so always follow the documentation for your exact board.
The Octopus V1.1 Control Board measures 160mm x 100mm with 150mm x 90mm mounting hole dimensions. Confirm your enclosure, DIN mount, printed bracket, standoffs, screw clearance, USB access, wiring path, and airflow before installation.
Disconnect all power before installing the board, stepper drivers, fans, heaters, thermistors, endstops, probes, motors, USB cables, displays, or other electronics. Never plug or unplug wiring while the board is powered unless the documentation specifically allows it.
The Octopus V1.1 supports selectable fan voltage rails. Confirm each fan voltage setting before connecting fans. Incorrect fan voltage can damage fans, toolhead electronics, or the control board.
Install stepper drivers in the correct orientation and confirm driver type, jumper configuration, UART/SPI settings, motor current, cooling, and firmware configuration before powering the board. Incorrect driver installation can damage the board or drivers.
The board uses separate power input sections for different loads. Confirm power supply voltage, input polarity, common grounds where required, fuse protection, wire gauge, bed heater current, motor power, and terminal tightness before powering the printer.
Use firmware files and configuration exles intended for the Octopus V1.1 and your exact printer setup. Incorrect pin assignments, heater settings, fan settings, thermistor types, or motor configurations can cause unreliable operation or hardware damage.
After installation, test power, USB communication, fans, endstops, probes, heaters, thermistors, motors, and firmware access one step at a time. Do not start a full print until each subsystem has been verified safely.
Printer control boards, stepper drivers, power electronics, and wiring can generate heat during long prints. Use proper electronics bay airflow, fan placement, heatsinks, and cable management so the board, drivers, and wiring stay within safe operating conditions.
Mount the board on proper standoffs and keep it away from loose screws, metal chips, conductive dust, filament strands, moisture, and uninsulated wiring. A small short circuit can permanently damage printer electronics.
High-current printer wiring, bed heater wiring, mains-powered accessories, and control cabinet wiring should be completed carefully by someone familiar with electrical safety. Incorrect wiring can damage equipment or create shock, heat, or fire hazards.
Every order is hand-inspected before shipping. dnb3D precision-ships control boards, electronics, compute modules, cooling accessories, and 3D printer hardware across Canada from our Ontario facility, helping Voron, Rat Rig, CoreXY, and DIY printer builders receive clean, usable parts ready for careful installation.
At dnb3D, we don’t just ship boxes—we manufacture solutions. Operating our Industry 4.0 micro-factory in Marathon, Ontario, means your order is handled by the same people who design and test these components.
Ready to Ship (3D Printer Parts & Hardware): Finished, inspected, and on the shelf. Dispatched within 1 to 2 business days.
In-House Manufacturing (Laser, Plasma, 3D Prints): These items are manufactured “fresh” to order. Please allow 3 to 5 business days for precision cutting and finishing.
Custom Projects: Bespoke designs require a consultation and a locked-in timeline before production begins.
We ship nationwide across Canada and the USA. Centrally located on the North Shore of Lake Superior, we are uniquely positioned to get your products moving quickly to either coast.
We stand behind every weld, cut, and print. If a product doesn’t meet your expectations, contact the Hub within 30 days. If we wouldn’t put it in our own shop, we won’t let it sit in yours.
Standard Items: Contact us within 30 days for return authorization. Items must be in original, unused condition.
Custom/Personalized Orders: Digitally fabricated to your exact specs (names, custom dimensions, or unique finishes) are final sale once production begins.
Shipping Costs: Return shipping is the responsibility of the customer unless the item arrived damaged or defective.
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